Convert email addresses into name, age, ethnicity, gender with Facebook
Well, a few weeks back, we were handed down this lovely present by our masters from above: Facebook. Save your email list as a CSV file (just comma separate those email addresses). Upload this file to your facebook account as if you wanted to add them as friends. Voila, facebook will give you all the profiles of all those users (in my test, about 80% of my email lists have facebook profiles). Now, click through each profile, and because of the new default facebook settings, which makes all information public, about 95% of the user info is available for you to harvest.
A powerful way to get demographic data on everybody in your address book, as well as a handy tool for bulk friending.
